CN202257547U - Device for testing display card in Loongson CPU (central processing unit) platform - Google Patents
Device for testing display card in Loongson CPU (central processing unit) platform Download PDFInfo
- Publication number
- CN202257547U CN202257547U CN2011202592833U CN201120259283U CN202257547U CN 202257547 U CN202257547 U CN 202257547U CN 2011202592833 U CN2011202592833 U CN 2011202592833U CN 201120259283 U CN201120259283 U CN 201120259283U CN 202257547 U CN202257547 U CN 202257547U
- Authority
- CN
- China
- Prior art keywords
- chip
- video card
- display card
- display
- main control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
The utility model provides a device for testing a display card in a Loongson CPU (central processing unit) platform. The device comprises two display chips, a display card switching chip, a main control module and a display end, wherein signal lines of the display chips are connected to the display card switching chip; the display card switching chip is connected to the display end; and the main control module transmits a switching signal to the display card switching chip. With the device, the development cycle is reduced, and an available display card chip can be obtained in limited time as soon as possible. Which display card chip is welded during mass production is determined according to a debugging result, so that hardware design is not changed; therefore, the development cycle is shortened, only one display card is welded during final mass production, and the cost is low.
Description
Technical field
The present invention relates to the display card test in the R&D process, be specifically related to the device of display card test in a kind of Godson CPU platform.
Background technology
Under the traditional B ios of x86, processor is operated in real pattern, and the maximum address space is 1MB, and typical memory mapping is as shown in Figure 1.
Wherein video-bios is one section binary code, is that the code that is used for initialization display card controller that provides of each video card manufacturer (leave in the ROM of video card or burn BIOS Flash with System BIOS) is read the place that 0xC0000 begins by BIOS.It should be noted that: this section code is the binary code of x86 instruction; Be operated under the real pattern simultaneously; And when we need solve the VGA problem on MIPS framework CPU; Because video card manufacturer generally can not provide the scale-of-two based on mips, therefore generally be to adopt the x86 simulator to remove to simulate this working environment to remove to explain the x86 binary code, thereby just can accomplish under MIPS framework CPU initialization video card correctly.
Because limitation, the immature property of simulator, can not guarantee that all video cards necessarily can very successfully simulate success, therefore when using not the video card that successful Application is crossed on MIPS framework CPU platform, potential risk is arranged.
Summary of the invention
The present invention needs new importing the neocaine of checking and the video card of good authentication to design into, solves the problems referred to above through the commutation circuit that designs two VGA.
The device of display card test comprises 2 video card chips in a kind of Godson CPU platform, and video card switches chip, main control module and display end;
Wherein, the signal wire of said video card chip is connected to video card and switches chip, and video card switches chip and is connected to display end, and main control module sends switching signal and switches chip to video card.
Preferably, said 2 video card chips, a slice is for to test the video card chip that passes through, and another piece is a chip to be measured.
Preferably, said main control module is Godson CPU or north bridge chips.
Preferably, the GPIO pin of said Godson CPU or north bridge chips is connected with video card switching chip.
Preferably, said video card switching chip is the PI3V512 chip.
Through the present invention, reduced the R&D cycle, can in the limited time, draw a operable video card chip as soon as possible.Weld which kind of video card chip when determining volume production, like this can not change hardware designs, thereby shorten the R&D cycle, and finally volume production is also only welded wherein a video card, and its cost is also very cheap according to the result who debugs.
Description of drawings
Fig. 1 is traditional VBIOS structure.
Fig. 2 is a structural drawing of the present invention.
Embodiment
Select a video card chip that successful Application is crossed on MIPS framework CPU platform; It is switched chip design with the new video card chip that needs to import through a VGA Switch become a two VGA commutation circuit; Select control signal SEL to be connected on the GPIO of CPU on the mainboard or other chip with switching gating; Perhaps let the VGA signal of which video card chip pass through VGA Switch for hanging down to control through gating selection control signal SEL for high, Switch is an example with the PI3V512 of pericom.
Display is inserted on the VGA connector; Perhaps drive output low level (L) through BIOS, let VGA Switch select to let the VGA signal of video card chip still to be tested pass through, watch display whether normally to show; If normal the demonstration; Video card chip successful transplantation then still to be tested is directly welded the chip of this new importing later in volume production, chip of good authentication just need not weld up so that reduce cost before another; If abnormal the demonstration; Then export Debugging message, come to debug together this video card to be verified, if debug successfully then use the video card of pouring into earlier to get final product during volume production according to the method described above through software and hardware through the serial ports that designs on the plank.
Claims (5)
1. the device of display card test in the Godson CPU platform, it is characterized in that: comprise 2 video card chips, video card switches chip, main control module and display end;
Wherein, the signal wire of said video card chip is connected to video card and switches chip, and video card switches chip and is connected to display end, and main control module sends switching signal and switches chip to video card.
2. device as claimed in claim 1 is characterized in that: said 2 video card chips, and a slice is for to test the video card chip that passes through, and another piece is a chip to be measured.
3. device as claimed in claim 1 is characterized in that: said main control module is Godson CPU or north bridge chips.
4. device as claimed in claim 3 is characterized in that: the GPIO pin of said Godson CPU or north bridge chips switches chip with video card and is connected.
5. device as claimed in claim 1 is characterized in that: it is the PI3V512 chip that said video card switches chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202592833U CN202257547U (en) | 2011-07-21 | 2011-07-21 | Device for testing display card in Loongson CPU (central processing unit) platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202592833U CN202257547U (en) | 2011-07-21 | 2011-07-21 | Device for testing display card in Loongson CPU (central processing unit) platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202257547U true CN202257547U (en) | 2012-05-30 |
Family
ID=46118758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202592833U Expired - Lifetime CN202257547U (en) | 2011-07-21 | 2011-07-21 | Device for testing display card in Loongson CPU (central processing unit) platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202257547U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103927242A (en) * | 2013-01-10 | 2014-07-16 | 鸿富锦精密工业(武汉)有限公司 | Display card testing system and display card testing method |
| CN104268046A (en) * | 2014-10-17 | 2015-01-07 | 浪潮电子信息产业股份有限公司 | Linux manual interaction NVIDIA GPU automatic testing method |
| CN106406968A (en) * | 2016-11-25 | 2017-02-15 | 湖南长城银河科技有限公司 | Graphics card equipment switching device and method based on Feiteng platform, and server |
| CN113590064A (en) * | 2021-07-26 | 2021-11-02 | 曙光信息产业股份有限公司 | Environmental test chamber and environmental test system |
-
2011
- 2011-07-21 CN CN2011202592833U patent/CN202257547U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103927242A (en) * | 2013-01-10 | 2014-07-16 | 鸿富锦精密工业(武汉)有限公司 | Display card testing system and display card testing method |
| CN104268046A (en) * | 2014-10-17 | 2015-01-07 | 浪潮电子信息产业股份有限公司 | Linux manual interaction NVIDIA GPU automatic testing method |
| CN106406968A (en) * | 2016-11-25 | 2017-02-15 | 湖南长城银河科技有限公司 | Graphics card equipment switching device and method based on Feiteng platform, and server |
| CN113590064A (en) * | 2021-07-26 | 2021-11-02 | 曙光信息产业股份有限公司 | Environmental test chamber and environmental test system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101770417B (en) | Hardware fault injection system and fault injection method based on JTAG | |
| CN109558282A (en) | A kind of PCIE chain circuit detecting method, system and electronic equipment and storage medium | |
| CN202257547U (en) | Device for testing display card in Loongson CPU (central processing unit) platform | |
| CN100511171C (en) | Test approach for debugging serial port function with single board and system thereof | |
| KR101874416B1 (en) | Universal serial bus emulation of peripheral devices | |
| CN106547653B (en) | Computer system fault state detection method, device and system | |
| CN102968377A (en) | Virtual machine technique based airborne software system testing general platform | |
| CN102401879B (en) | The method of testing of the USB function of chip, Test Host and test macro | |
| CN102662808B (en) | Method and device for realizing hardware fault detection on PCIE (peripheral component interconnect express) | |
| CN104572385B (en) | Memory fault detection system and method | |
| CN102917242A (en) | Testing system and testing method of multi-format video decoder | |
| CN105320553A (en) | Method and system for updating network card firmware based on domestic processor platform | |
| CN106681877B (en) | Chip debugging system and method and system chip | |
| CN101114249A (en) | I2C bus testing apparatus of mainboard and method thereof | |
| CN102916741A (en) | Optical module hardware online test method | |
| CN113364747B (en) | Debugging method, device and system and data set generation method and device | |
| CN101950265A (en) | Method for CPU board card program downloading and hardware online detection and plug-in connector | |
| CN113204456A (en) | Test method, tool, device and equipment for VPP interface of server | |
| CN209765501U (en) | JTAG-based multiprocessor simulation debugging device | |
| CN108153624B (en) | Test circuit board suitable for NGFF slot | |
| CN102486939B (en) | Method and apparatus for testing joint test action group (JTAG) of memories | |
| TW201430358A (en) | Switchable debug card | |
| CN103389438B (en) | A kind of for the welding detection system with cpu pcb and method | |
| CN108681497B (en) | CPCI bus testing device and method | |
| CN103164308A (en) | Debugging system and debugging method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |